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-rw-r--r--railties/lib/rails/commands/server/server_command.rb88
1 files changed, 72 insertions, 16 deletions
diff --git a/railties/lib/rails/commands/server/server_command.rb b/railties/lib/rails/commands/server/server_command.rb
index e546fe3e4b..44b26d3846 100644
--- a/railties/lib/rails/commands/server/server_command.rb
+++ b/railties/lib/rails/commands/server/server_command.rb
@@ -44,7 +44,6 @@ module Rails
end
def start
- print_boot_information
trap(:INT) { exit }
create_tmp_directories
setup_dev_caching
@@ -52,9 +51,14 @@ module Rails
super
ensure
- # The '-h' option calls exit before @options is set.
- # If we call 'options' with it unset, we get double help banners.
- puts "Exiting" unless @options && options[:daemonize]
+ yield
+ end
+
+ def serveable? # :nodoc:
+ server
+ true
+ rescue LoadError, NameError
+ false
end
def middleware
@@ -65,6 +69,10 @@ module Rails
super.merge(@default_options)
end
+ def served_url
+ "#{options[:SSLEnable] ? 'https' : 'http'}://#{host}:#{port}" unless use_puma?
+ end
+
private
def setup_dev_caching
if options[:environment] == "development"
@@ -72,13 +80,6 @@ module Rails
end
end
- def print_boot_information
- url = "on #{options[:SSLEnable] ? 'https' : 'http'}://#{options[:Host]}:#{options[:Port]}" unless use_puma?
- puts "=> Booting #{ActiveSupport::Inflector.demodulize(server)}"
- puts "=> Rails #{Rails.version} application starting in #{Rails.env} #{url}"
- puts "=> Run `rails server -h` for more startup options"
- end
-
def create_tmp_directories
%w(cache pids sockets).each do |dir_to_make|
FileUtils.mkdir_p(File.join(Rails.root, "tmp", dir_to_make))
@@ -108,9 +109,15 @@ module Rails
module Command
class ServerCommand < Base # :nodoc:
+ # Hard-coding a bunch of handlers here as we don't have a public way of
+ # querying them from the Rack::Handler registry.
+ RACK_SERVERS = %w(cgi fastcgi webrick lsws scgi thin puma unicorn)
+
DEFAULT_PORT = 3000
DEFAULT_PID_PATH = "tmp/pids/server.pid".freeze
+ argument :using, optional: true
+
class_option :port, aliases: "-p", type: :numeric,
desc: "Runs Rails on the specified port - defaults to 3000.", banner: :port
class_option :binding, aliases: "-b", type: :string,
@@ -122,6 +129,8 @@ module Rails
desc: "Runs server as a Daemon."
class_option :environment, aliases: "-e", type: :string,
desc: "Specifies the environment to run this server under (development/test/production).", banner: :name
+ class_option :using, aliases: "-u", type: :string,
+ desc: "Specifies the Rack server used to run the application (thin/puma/webrick).", banner: :name
class_option :pid, aliases: "-P", type: :string, default: DEFAULT_PID_PATH,
desc: "Specifies the PID file."
class_option "dev-caching", aliases: "-C", type: :boolean, default: nil,
@@ -132,19 +141,28 @@ module Rails
def initialize(args = [], local_options = {}, config = {})
@original_options = local_options
super
- @server = self.args.shift
+ @using = deprecated_positional_rack_server(using) || options[:using]
@log_stdout = options[:daemon].blank? && (options[:environment] || Rails.env) == "development"
end
def perform
set_application_directory!
prepare_restart
+
Rails::Server.new(server_options).tap do |server|
# Require application after server sets environment to propagate
# the --environment option.
require APP_PATH
Dir.chdir(Rails.application.root)
- server.start
+
+ if server.serveable?
+ print_boot_information(server.server, server.served_url)
+ server.start do
+ say "Exiting" unless options[:daemon]
+ end
+ else
+ say rack_server_suggestion(using)
+ end
end
end
@@ -152,7 +170,7 @@ module Rails
def server_options
{
user_supplied_options: user_supplied_options,
- server: @server,
+ server: using,
log_stdout: @log_stdout,
Port: port,
Host: host,
@@ -226,7 +244,7 @@ module Rails
end
def restart_command
- "bin/rails server #{@server} #{@original_options.join(" ")} --restart"
+ "bin/rails server #{using} #{@original_options.join(" ")} --restart"
end
def early_hints
@@ -238,12 +256,50 @@ module Rails
end
def self.banner(*)
- "rails server [puma, thin etc] [options]"
+ "rails server [thin/puma/webrick] [options]"
end
def prepare_restart
FileUtils.rm_f(options[:pid]) if options[:restart]
end
+
+ def deprecated_positional_rack_server(value)
+ if value
+ ActiveSupport::Deprecation.warn(<<-MSG.squish)
+ Passing the Rack server name as a regular argument is deprecated
+ and will be removed in the next Rails version. Please, use the -u
+ option instead.
+ MSG
+ value
+ end
+ end
+
+ def rack_server_suggestion(server)
+ if server.in?(RACK_SERVERS)
+ <<~MSG
+ Could not load server "#{server}". Maybe you need to the add it to the Gemfile?
+
+ gem "#{server}"
+
+ Run `rails server --help` for more options.
+ MSG
+ else
+ suggestions = Rails::Command::Spellchecker.suggest(server, from: RACK_SERVERS).map(&:inspect)
+
+ <<~MSG
+ Could not find server "#{server}". Maybe you meant #{suggestions.first} or #{suggestions.second}?
+ Run `rails server --help` for more options.
+ MSG
+ end
+ end
+
+ def print_boot_information(server, url)
+ say <<~MSG
+ => Booting #{ActiveSupport::Inflector.demodulize(server)}
+ => Rails #{Rails.version} application starting in #{Rails.env} #{url}
+ => Run `rails server --help` for more startup options
+ MSG
+ end
end
end
end